Mathematics Past Questions And Answers
Determine the mean of the following numbers: [?2,?6,11,13,2,0]
- A. 4
- B. 3
- C. 17/3
- D. 9
The table shows the distribution of the distance (in km) covered by 40 hunters while hunting.
| Distance(km) | 3 | 4 | 5 | 6 | 7 | 8 |
| Frequency | 5 | 4 | x | 9 | 2x | 1 |
If a hunter is selected at random, find the probability that the hunter covered at least 6km.
- A. \(\frac{3}{5}\)
- B. \(\frac{2}{5}\)
- C. \(\frac{3}{8}\)
- D. \(\frac{9}{40}\)
In XYZ, |YZ| = 32cm, ∠ YXZ = 53° and ∠ XZY = 90°. Find, correct to the nearest centimetre, |XZ|
- A. 31 cm
- B. 25 cm
- C. 20 cm
- D. 13 cm
From the equation whose roots are x = \(\frac{1}{2}\) and -\(\frac{2}{3}\)
- A. 6x2 - x + 2 = 0
- B. 6x2 - x - 2 = 0
- C. 6x2 + x + 2 = 0
- D. 6x2 + x - 2 = 0
A car travel at x km per hour for 1 hour and at y km per hour for 2 hours. Find its average speed
- A. \(\frac{2x + 2y}{3}kmh^{-1}\)
- B. \(\frac{x + y}{3}kmh^{-1}\)
- C. \(\frac{x + 2y}{3}kmh^{-1}\)
- D. \(\frac{2x + y}{3}kmh^{-1}\)
Simplify: \(\frac{2}{3xy} - \frac{3}{4yz}\)
- A. \(\frac{2-x}{12xyz}\)
- B. \(\frac{2z-3x}{12xyz}\)
- C. \(\frac{4z-3x}{12xyz}\)
- D. \(\frac{8z-9x}{12xyz}\)
A sector of a circle radius 14 cm subtends an angle 135° at the center of the circle. What is the perimeter of the sector? Take π = 22/7
- A. 47cm
- B. 61cm
- C. 88cm
- D. 231cm
If S = \(\sqrt{t^2 - 4t + 4}\), find t in terms of S
- A. S2 - 2
- B. S + 2
- C. S - 2
- D. S2 + 2
The diameter of a bicycle wheel is 42cm. If the wheel makes 16 complete revolution, what will be the total distance covered by the wheel? [Take \(\pi = \frac{22}{7}\)
- A. 672cm
- B. 1056cm
- C. 2112cm
- D. 4224cm
Find the common ratio in the GP: log 3, log 9, log 81 ..........
- A. 1
- B. 2
- C. 3
- D. 6